Method of monitoring the level of power transmitted by a contactless communication device and corresponding contactless communication device
US10326193B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Apr 12, 2018 |
| Grant date | Jun 18, 2019 |
| Priority date | — |
| Expiry date | Apr 12, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02D30/70
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
In some embodiments, a contactless communication device includes an antenna, and a driving stage having a power supply terminal configured to receive a power supply voltage, where the driving stage is configured to deliver a current to the antenna. The device further includes a monitoring circuit configured to monitor the power transmitted by the antenna. The monitoring circuit is configured, in the presence of a request for a reduction in a current level of transmitted power, to reduce the power supply voltage of the driving stage down to a target value corresponding to a new level of the transmitted power less than the current level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.